Answer:
7.3cm above the compressed spring.
Explanation:
We can use the conservation energy theorem to solve this problem:

The block was dropped 7.3cm above the compressed spring.
Answer:A
Explanation:
I just did the same question on usatestprep
In this problem, we are given with the resultant velocity of the swimmer considering the current is running 0.91 m/s that is equal to 1.1 m/s2. In this case, using v = d/t, t = 3000m / 1.1 m/s equal to 2727.27 seconds equal to 45.45 hours. The distance downstream is equal to 2727.27 seconds * 0.91 m/s equal to 2481.82 meters.
the color violet has the shortest wavelength!
An impulsive force is a force that is acting only during a short time, I mean, for an instant. Impulse is a physics magnitude define by the product of the impulsive force and the time that it was acting.
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